OTTR Otter Tail Corporation

NASDAQ
$87.42

Otter Tail Corporation (OTTR) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
-23.08
10 buyers / 16 sellers
SELLING
Funds compared
26
funds with comparable OTTR positions
23 current holders · 24 prior-quarter holders
Net share change
-509.8K
+181.5K added, -691.3K cut
Position activity
2 new 8 increased 13 reduced 3 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
MARSHALL WACE, LLP Long/Short Sold Out -95.2K -100.0% $8.6M 0.0% 58
RENAISSANCE TECHNOLOGIES LLC Quant Increased +16.7K +252.6% $1.5M 0.0% 54
Verition Fund Management Event Long/Short Sold Out -3.9K -100.0% $353.4K 0.0% 54
Schonfeld Strategic Advisors Long/Short Quant New +13.6K — $1.2M 0.0% 53
Quadrature Capital Quant New +6.3K — $569.8K 0.0% 52
Brevan Howard Capital Management Macro Sold Out -11.7K -100.0% $1.1M 0.0% 51
Holocene Advisors, LP Increased +10.7K +213.9% $958.6K 0.0% 50
Qube Research & Technologies Ltd Quant Reduced -195.5K -73.0% $17.6M 0.0% 46
Voloridge Investment Management Quant Reduced -67.4K -74.5% $6.1M 0.0% 43
Man Group Event Long/Short Reduced -41.4K -74.1% $3.7M 0.0% 41

Most significant buyers

By move score, not size.

  • RENAISSANCE TECHNOLOGIES LLC Increased · +16.7K
  • Schonfeld Strategic Advisors New · +13.6K
  • Quadrature Capital New · +6.3K
  • Holocene Advisors, LP Increased · +10.7K
  • Capstone Investment Advisors Increased · +5.7K

Most significant sellers

By move score, not size.

  • MARSHALL WACE, LLP Sold Out · -95.2K
  • Verition Fund Management Sold Out · -3.9K
  • Brevan Howard Capital Management Sold Out · -11.7K
  • Qube Research & Technologies Ltd Reduced · -195.5K
  • Voloridge Investment Management Reduced · -67.4K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
MARSHALL WACE, LLP 2 0 95.2K -95.2K -100.0% 0.0% Sold Out 58
RENAISSANCE TECHNOLOGIES LLC 1 23.3K 6.6K +16.7K +252.6% 0.0% Increased 54
Verition Fund Management 2 0 3.9K -3.9K -100.0% 0.0% Sold Out 54
Schonfeld Strategic Advisors 3 13.6K 0 +13.6K — 0.0% New 53
Quadrature Capital 3 6.3K 0 +6.3K — 0.0% New 52
Brevan Howard Capital Management 3 0 11.7K -11.7K -100.0% 0.0% Sold Out 51
Holocene Advisors, LP 2 15.6K 5.0K +10.7K +213.9% 0.0% Increased 50
Qube Research & Technologies Ltd 2 72.3K 267.9K -195.5K -73.0% 0.0% Reduced 46
Voloridge Investment Management 2 23.1K 90.4K -67.4K -74.5% 0.0% Reduced 43
Man Group 3 14.5K 55.9K -41.4K -74.1% 0.0% Reduced 41
Bridgewater Associates 1 8.5K 15.2K -6.7K -43.8% 0.0% Reduced 41
MILLENNIUM MANAGEMENT LLC 2 71.1K 130.2K -59.1K -45.4% 0.0% Reduced 40
Quantbot Technologies 4 1.5K 18.1K -16.5K -91.4% 0.0% Reduced 39
ADAGE CAPITAL PARTNERS GP, L.L.C. 2 210.5K 342.0K -131.5K -38.4% 0.0% Reduced 38
CITADEL ADVISORS LLC 1 36.1K 51.2K -15.1K -29.6% 0.0% Reduced 36
Voleon Capital Management 3 3.6K 9.0K -5.5K -60.3% 0.0% Reduced 35
Capstone Investment Advisors 3 16.8K 11.1K +5.7K +50.9% 0.0% Increased 35
Tudor Investment Corporation 2 52.6K 85.9K -33.2K -38.7% 0.0% Reduced 34
D. E. Shaw & Co., Inc. 1 447.0K 399.4K +47.6K +11.9% 0.0% Increased 32
TWO SIGMA INVESTMENTS, LP 2 725.8K 662.9K +62.8K +9.5% 0.1% Increased 30
Engineers Gate 4 17.6K 12.0K +5.7K +47.3% 0.0% Increased 29
Gotham Asset Management, LLC 2 4.0K 4.9K -907 -18.5% 0.0% Reduced 28
AQR Capital Management 3 29.2K 22.0K +7.1K +32.4% 0.0% Increased 28
Winton Group 4 19.9K 14.6K +5.3K +36.4% 0.1% Increased 27
Squarepoint Ops LLC 2 55.9K 61.6K -5.7K -9.3% 0.0% Reduced 26
Capital Fund Management 3 12.0K 14.0K -2.0K -14.1% 0.0% Reduced 25

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.